 |
| pilot: 12 phrases in 6 subjects |
| Abbreviation | 7 |
| Aviation | 1 |
| Military | 1 |
| Research and development | 1 |
| Stock Exchange | 1 |
| United States | 1 |
|
| pilot: 12 phrases in 6 subjects |
| Abbreviation | 7 |
| Aviation | 1 |
| Military | 1 |
| Research and development | 1 |
| Stock Exchange | 1 |
| United States | 1 |